Acronyms dictionary SMBT What does SMBT mean? SMBT is a textspeak acronym standing for suck my big toe, usually used when you’ve had enough of someone. Related words: IJS DIAF Examples of SMBT Results day can smbt @amyykatherineex, August, 2016 Lol you trifling tricked out tricycle smbt @pcstelcosmos, October, 2017 Well I have no respect for you so smbt @JacobBellerive, September, 2017 SEE MORE EXAMPLES Who uses SMBT? Just Added comfort character, grandfluencer, frito pie, walking taco, .5 selfie Note This is not meant to be a formal definition of SMBT like most terms we define on Dictionary.com, but is rather an informal word summary that hopefully touches upon the key aspects of the meaning and usage of SMBT that will help our users expand their word mastery.